Home | History | Annotate | Download | only in fs.enum
      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // UNSUPPORTED: c++98, c++03
     11 
     12 // <experimental/filesystem>
     13 
     14 // enum class copy_options;
     15 
     16 #include <experimental/filesystem>
     17 #include <type_traits>
     18 #include <cassert>
     19 
     20 #include "check_bitmask_types.hpp"
     21 #include "test_macros.h"
     22 
     23 namespace fs = std::experimental::filesystem;
     24 
     25 constexpr fs::copy_options ME(int val) { return static_cast<fs::copy_options>(val); }
     26 
     27 int main() {
     28   typedef fs::copy_options E;
     29   static_assert(std::is_enum<E>::value, "");
     30 
     31   // Check that E is a scoped enum by checking for conversions.
     32   typedef std::underlying_type<E>::type UT;
     33   static_assert(!std::is_convertible<E, UT>::value, "");
     34 
     35   static_assert(std::is_same<UT, unsigned short>::value, ""); // Implementation detail
     36 
     37   typedef check_bitmask_type<E, E::skip_existing, E::update_existing> BitmaskTester;
     38   assert(BitmaskTester::check());
     39 
     40   static_assert(
     41           E::none == ME(0),
     42         "Expected enumeration values do not match");
     43   // Option group for copy_file
     44   static_assert(
     45           E::skip_existing      == ME(1) &&
     46           E::overwrite_existing == ME(2) &&
     47           E::update_existing    == ME(4),
     48         "Expected enumeration values do not match");
     49   // Option group for copy on directories
     50   static_assert(
     51           E::recursive == ME(8),
     52         "Expected enumeration values do not match");
     53   // Option group for copy on symlinks
     54   static_assert(
     55           E::copy_symlinks == ME(16) &&
     56           E::skip_symlinks == ME(32),
     57         "Expected enumeration values do not match");
     58   // Option group for changing form of copy
     59   static_assert(
     60           E::directories_only    == ME(64) &&
     61           E::create_symlinks     == ME(128) &&
     62           E::create_hard_links   == ME(256),
     63         "Expected enumeration values do not match");
     64 }
     65